Silastic
Silicone coated fiberglass
The silastic is made of 2 or more thicknesses of texturized fiberglass cloth laminated together with a red high temperature fireproof silicone. It is offered in a smooth, red oxide or regular finish.
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Applications
This material is often used in smelters for tapping operation joints and tolerates high temperatures. The silastic can be use in many applications: gasket for oven door base, supporting part for thermal treatment, general sealing gasket, tadpole, conveyor skirt, high temperature mat, protection curtain, expansion joint and more.
Specifications
Technical Data
| Thickness | 1/4", 3/8", 1/2", 3/4" |
|---|---|
| Color | Red |
| Temperature | Silicone: -67°F to 550°F, Fiberglass: 1000°F |
Physical properties
| Silicone | |
|---|---|
| Hardness Shore A (DIN 53505) | 31 |
| Density (ISO 1183-1 A) | 1.09g/cm³ |
| Elongation at break, %(DIN 53504 S 1) | 620 |
| Tensile strength (N/mm²) (DIN 53504 S 1) | 7.50 |
| Tear strenght N/mm (ASTM D624B) | 23 |
| Rebound resilience, % (DIN 53512) | 61 |
| Compression set (DIN ISO 815-B) | 10 % (22h/175°C) |
| Flame resistance (UL 94) | HB (0.5 mm) |
| Gas permeability (DIN 53536) | |
| Room temperature | Very high resistance |
| at 68°F | Resistance 30 x superior to natural rubber |
| High temperature | Resistance 400 x superior to butyl rubber (At high temperature, this silicone have similar results than other organic rubber) |
| High energy radiation resistance | ExcellentNot affected by gamma and beta radiationVery good resistance to microwave |
| Ozone and UV resistance | Excellent |
| Strong bases resistance | Good |
| Oxidizing acids resistance | Bad |
Electrical properties
| Silicone | |
|---|---|
| Dielectric strength (1-mm-sheet) (DIN IEC 243 2) | 23 kV/mm |
| Dielectric constant at 50 Hz (DIN VDE 0303) | 2.8 εr |
| Dissipation factor (50 Hz) (DIN VDE 0303) | 20 X 10^-4 tan δ |
| Volume resistivity (DIN IEC 93) | 5 x 10^15 Ω cm |
N.B. The information presented may differ from practice. We recommend conducting tests according to the conditions of use. We accept no responsibility for results obtained by the application of this information or the safety and suitability of our products. The data is subject to certain variations without notice.
